6.1 Roots and Radical Expressions(1).notebook
December 08, 2011
6.1 Roots and Radical Expressions
Corresponding to every power there is a root. For example, just as there are squares (second powers), there are square roots. Just as there are cubes (third powers), there are cube roots and so on...
52 = 25 53 = 125
54 = 625
55 = 3125
5 is a square root of 25
5 is a cube root of 125
5 is a fourth root of 625
5 is a fifth root of 3125
1
6.1 Roots and Radical Expressions(1).notebook
December 08, 2011
The number under the radical sign is the radicand. The index gives the degree of the root.
2
6.1 Roots and Radical Expressions(1).notebook
December 08, 2011
What is each real number root?
3
6.1 Roots and Radical Expressions(1).notebook
December 08, 2011
4
6.1 Roots and Radical Expressions(1).notebook
December 08, 2011
What is the simpler form of each radical expression?
5
6.1 Roots and Radical Expressions(1).notebook
December 08, 2011
HW p. 364; 1­29 all Ignore Absolute Value
6